Fountain pen



April 1 1924.

E. T. WHIFFEN FOUNTAIN PEN Filed March 4. 1922 r/vI/E/vron u wwwmoRNEx/s WT/VESSES MW M v ffii Patented Apr. l, i924.

'EDWIN `fr. wHrrrnN, or New aocnnrrn, New Yoan.

Fouirrlrr rms.

Application led March 4, 1.922. Serial No. 541,066.

To all whom t may concern.' Y

n Be it known that EDWIN T. VHIFFEN, a citizen of the United States, anda resident of New Rochelle, in thepcounty of VTestchester and State ofNew York, have invented a new and 'Improved Fountain Pen, of whichthefollowing is a full, clear, and exact description.

This invention has relation to fountain pens and refers moreparticularly to a fountain pen of the self-filler type. y

The invention contemplates for one of its principal objects aself-filling fountain pen whichv affords asimple rand effective meansfor introducing the writing fiuid into the barrel through the inkoutletor feeder opening whereby to obviate the necessity of removing thenib and feeder carrier during the filling operation. y

As a further object the invention contemplates a filling element whichconsists of a plunger movable within the barrel for drawing the ink intothe same and a plunger rod connected therewith and extending through thehead of the barrel to permit Aof the manipulation of the plunger.

`The invention further contemplates in a fountain pen a self-fillingmeans which is simple and compact in its structure to afford a maximumink receiving space and which is strong and durable in construction toobviate the necessity of constant re airs.

yWith the above recited and ot er objects yin view, the inventionresides in the novel construction set forth in the followingspecification,v particularly pointed out in the appended claims andillustrated in the accompanying drawings7 yit being understood that theright is reserved to embodiments other than those actually illustratedherein to the full extent indicated by the general meaning of the termsin which the claims are eX- pressed.

In the drawings Figure 1 is a longitudinal sectional view through afountain pen constructed in accordance with the invention.

Fig. 2 is a similar view illustrating the operation of the filling meansfor introducing the ink into the pen.

Fig. 3 is a transverse sectional view taken approximately on the line 33 of Fig. 1.

Fig. 4 is an enlarged fragmentary sectional view illustrating the mannerin which the ink is fed to the pen nib when in writing position.

`Referring to the drawings by characters .of reference, designates a penbarrel of tubular construction provided at its upper end with a closedhead 11 having an exteriorly `threaded portion 12 extending therefrom toengage and coact with an internally threaded closure cap 13. A nibcarrier Mis threaded in the opposite or lower end of the barrel and thesame has associated therewith the feeder 15 and pen nibl arranged in theink outlet or feeder opening 17. The lower extremity of the barrel isexteiiorly threaded as at 18 to Areceive the usual detachable cap'1'9.

The filling means consists of a plunger head 20 having aperipheralpacking 2l env gaging the bore of the barrel and provided witha central opening 22 through which the inner or lower end of a tubularplunger rod 23 extends and is secure. The opposite end ofthe plunger rodextends through a central opening 24 in the head 11 and is engaged by aninner peripheral packing 25. The plunger rod is provided at its outerextremity with a removable manipulating handle 26l normally enclosed andconcealed by the closure cap 13. The'plunger rod is provided withan'upper bore 27 and a reduced lower bore 28 communicating therewith andforming at the juncture with the bore 27 a shoulder 29.` The upper borenormally is closed at its outer endby the body of the removablemanipulating handle. Inlet and outlet openings 30 are provided in theplunger rod adjacent the shoulder 29 and establish communication betweenthe interior of the barrel above the plunger head and the o bore 27 ofsaid plunger rod. Aball valve 31 is arranged in the bore 27 and normallyseats on the upper end of the bore 28 to close the same when the pen isheld in a vertical position with the nib end downward.

To ll the pen, the nib is inserted in the ink after the closure cap 13is removed and plunger rod is pulled upwardly to draw the plunger headtoward the upper end, thereby creating a suction in the barrel. The inkis thus drawn upwardly through the ink outlet or feeder opening 17 tointroduce a supply in the barrel below the plunger. During thisoperation the ball valve 31 will seat on the Lipper end of the bore 28.The removable manipulating handle 26 is removed to permit escape of theair confined between the plunger and the head 11 and is replaced inposition to close the bore 27 at its outer end as soon as thel upwardmovement or retraction of the plunger has been accomplished. To move theplunger downward to normal position and permit of the transfer of theink from the under sideof the plunger to the space aboverthe same, theball valve is lifted as the plunger descends, permitting the ink to flowthrough the bore 28v into the bore 27 and' through the openings 30'intothe barrel above the plunger. The closure cap 13 is then associated withthe threaded portion 12 of the head 1l and the pen is ready for use. Inuse of the pen when held in writing position `at the usual angle asillustrated in Fig. 4, the ball valve 3i dis unseated from the upper endof the bore 2'8Vand rests on' the shoulder at the lower end of the bore27 to permit the inlr to flow from the bore 27 `and the interior `of thebarrel abovethe plunger through the bore 28 to the inl: outlet or feederopening into the feeder and onto the nib.v

I claim: o

l. The combination with a fountain pen includinga barrel having afeeding opening at one end, of a filling means comprising an axiallymovable plunger having an ink passage extending therethrough, a plungerrod connected Vthereto and extending through the opposite end of thebarrel for manipulating the plunger, and means operable upon movement ofthe plunger Vaway from the feeding opening to close the ink passage forcreating a suction to introduce ink through the feeding opening' intothe barrel,- said means being operable upon; movement of the plunger inthe oppositedirection toopen the passage to allow the inkrto passtherethrough, said means being further operable when the pen is inwriting position to uncover the passage to permit of the feeding of theink therethrough.

2. In a fountain pen, a barrel open at one end and providedwith Yacombined feeding and filling opening at its other end,A a plungerreci'procable in the barrel, a tubular plunger rod extending throughsaid plunger and secured adjacent to one end to the latter, said plungerrod extending slidably through the closed end of the barrel, saidplunger rod being provided with a lateral port adjacent to but spacedfrom the plunger and being provided with a valve seat located in theinner wall of the plunger rod between the lateral port and the said oneend of the plunger rod7 and a check valve disposed in the bore of theplunger rod in position to open toward the closed end of the barrelandbeing adapted to move to open position when the barrel is in writingpos'itiom saidlvalve being adapted to cooperate with the valve seat whenin closed positionto prevent flowof fluid from the feeding and iillingopening through the plunger rod to the lateral port. Y

Y 3. In a fountainpen, a barrelopen/'a't one end and provided with acombined feeding and .iilling opening at its other end, a plungerreciprocable in the barrel,V al tubular plunger rod extending throughsaid plunger and secured adjacent to one end to the latter,

said plunger rod extending slidablv through the closed end of thebarrel, said plunger rod being provided with a lateral port adjacent tobut spaced from the plunger and being provided with a valve seat locatedin the inner wall of the plunger rod between the lateral port and thesaid vone end of the plunger rod, ,and a check Vvalve disposed in vthebore of the plunger rodV in position to open towardthe closed end ofthebarrel and being adapted to vmove to open positionV when the barrelis in writing position, said valve being adapted to cooperatewiththevalve seat when in closed position to prevent flow of fluid from thefeeding and filling opening through the plunger rod to the latter port,and a removable means for closing thetubular plunger rod at'its secondnamed end.

nnwiN T. WHIFFEN.

